Sarpagandha / Rauvolfia serpentina – Classification, Ayurvedic Properties & Dosage Description Sarpagandha (Rauwolfia serpentina) is a famous Tranquilizer and Antipsychotic herb and is useful in controlling Hypertension. Sarpagandha is an erect, evergreen shrub which grows up to a height of 15-45 cm. The leaves of Sarpagandha are large, from dark green to pale green in colour. Its scientific name is Rauwolfia Serpentina. The roots of this herb are tuberous with a brown cork. Its flowers are white in colour and